AIR IN TUBE DETECTOR PendoTECH Air in Tube Detector Operates with sound waves and is non-invasive to the fluid path. Detects presence of air or liquid in tube. Perfect for use in processes with single use fluid paths with no expendable costs. Can be integrated to control systems to measure the output and trigger response in the following types of processes: Chromatography- to prevent air from being pumped into column Depth Filtration- to detect end of batch Tangential Flow Filtration- to determine the end-point of fed-batch or buffer additions Bioreactors- monitor bioreactor feed lines to notify if addition sources are empty